Simplify the expression.
7x2 + 3 - 5(x2 - 4)
2x2-17
2x2-1
2x2 + 23
25x2

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

What does the relationship between the mean and median reveal about the shape of the data